The change of landscape structure at the production on loose field in the basin of the river of Koloromo of the North Yenisei area

The research objective was to carry out quantitative and qualitative analysis of structural condition of the landscapes at production of loose field in the basin of the river of Koloromo. The research problems were: 1) to carry out the analysis of the types of technogenic landscapes created at production of loose gold deposit; 2) to determine key parameters of the distribution of fractional structure of friable deposits. Technogenic territories were presented by the land and flooded squares. The flooded sites included: the course of waterway, ponds settlers of reverse system of water supply, ponds stores. The land area was presented by dumps of overburden breeds, washing dumps, undisturbed sites located in a working off contour, not flooded developed space. Technogenic disperse soil was placed in the dumps of overburden breeds and dumps of washing. The dumps of overburden rocks were laid out on the boards of the contour of working off or in developed space and represented created terraces. The formation of the dumps of washing was carried out proceeding from the applied processing equipment, washing volume on each parking of the device and the structure of scattering. The soils of not flooded developed space were presented by rocky soil of various degree of jointing. Other part of the land was presented by technogenic soil of different types. Considerable part of the territory was occupied by the dumps of overburden rocks. The formed technogenic soil was subdivided into some types, depending on the nature of the influence and the types of the formed dumps. The characteristic of soil of dumps was defined as proceeding from the size of prevailing fraction and productive (top) layer. According to geological structure of the scattering in the basin of the river of Koloromo, the volume of pebble fraction made about 30-35 % of the volume of washed-out sand taking into account the coefficient of loosening 1.4. Hale fractions formed separate dumps that were confirmed by visual supervision. Depending on the types of the formed dumps it was necessary to carry out remediation works of agricultural or silvicultural direction or to provide preservation of unsuitable sites of dumps of overburden rocks.